Melissa had 54 questions wrong on her exam that had 150 questions. Each question was

worth 1 mark. What was her mark written as a percent?​

Answer:

She earned $20 in tips.

Step-by-step explanation:

First, you need to work out how much pay she'd get for 12 hours work:

12 x $11.25 = $135 for 12 hours work

Then, find out 2/5 of $11.25 to find out how much she would get for the 2/5 of an hour she worked:

2/5 of $11.25 = $4.50

Add both these sums together to get her total pay for hours worked:

$135 + $4.50 = $139.50

Subtract that sum from her total pay to find out how much money she earned in tips:

$159.50 - $139.50 = $20

Answer: ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm WHAT IS THIS!!!!!!!!!!!!!! THIS IS NOT MATH I MEAN IT COLD BE AND WHAT GRADE MATH IS THIS!!!!!!!!!!!!!!!!!!!!!!!!

*_*

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Find AB using the Law of Sine:

[tex] \frac{AB}{sin(C)} = \frac{AC}{sin(B)} [/tex]

Thus:

[tex] \frac{AB}{sin(40)} = \frac{47}{sin(103)} [/tex]

Multiply both sides by sin(40)

[tex] \frac{AB}{sin(40)}*sin(40) = \frac{47}{sin(103)}*sin(40) [/tex]

[tex] AB = \frac{47*Sin(40)}{sin(103)} [/tex]

AB = 31.0056916 ≈ 31.0 cm (nearest tenth)

Answer:

-10

Step-by-step explanation:

Answer:

No solution

Step-by-step explanation:

There are no values of x that make the equation true; hence making it have no solution.

Step-by-step explanation:

Any number squared will be a positive number.

-9 or 9 squared will equal 81.

81 + C = 103

C = 103 - 81

22

Answer:

3

Step-by-step explanation:

6/2=3

6/2=3

3/1=3

Answer:

D

Step-by-step explanation:

If on khan

the graph is pasted

A graph is a structure that resembles a set of items in mathematics, more specifically in graph theory, in which some pairings of the objects are conceptually "connected." The items are represented by mathematical abstractions known as vertices, and each pair of connected vertices is referred to as an edge.

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Answer:

6cm , 12cm

Step-by-step explanation:

Answer:

since,

y = 2x and y = –2x + 15

then,

2x = –2x + 15

or, 4x = 15

or, x = 15/4

or, x = 3.75

Also,

y= 2x

= 2*3.75

= 7.5

Hope it helped

All the best!!

Answer:

Step-by-step explanation:

[tex]x^{2} = -2x^{2} +15[/tex]

add [tex]2x^{2}[/tex] to both sides

[tex]3x^{2} = 15[/tex]

divide each side by 3

[tex]x^{2} =5[/tex]

square root each side [tex]\sqrt{x^2} =\sqrt{5}[/tex]

[tex]x= 2.23606794[/tex] or rounded to the nearest hundredth [tex]x=2.24[/tex] or x = ±[tex]\sqrt{5}[/tex]

Answer:

420

Step-by-step explanation:

Because 7+7=420 and poopie

Answer is 98 because i love cheese

Answer:

16.8

Step-by-step explanation:

just look at the length to the side of it (the "28") and look at the given answers. 4 seems way too small and because the line is shorter than 28 it cant be 43, so 16.8 is the most reasonable option.

Answer:

Initial population is 2,466,000 ( p0 )

Growth is 1.1% each year ( r=1.1

p(t)=p0(1+r)t

After 30 years, the population of Jamaica should be 3.42 million by that calculation, but it is only 2.95 million, so apparently that growth rate was a little high, or wasn’t sustained.

Answer:

n > -4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

n - 7 > -11

Step 2: Solve for n

Here we see that any value n greater than -4 would work as a solution.

Answer:

There are 380 students and 20 teachers.

Answer:

380

Step-by-step explanation:

Let 19x =  no. of students

        x =  no. of teachers

Then,  x + 19x = 400

20x = 400

x = 20

19x = 19(20) = 380

Answer: Jane needs 1 11/ 12 cups of flour more to make the cookie dough

Step-by-step explanation:

Recipe for cookie dough= 3 2/3cups of flour

Amount of flour available for Jane = 1 3/4 cups of flour

Amount of flour Jane needs to add to make cookie dough

=3 2/3 - 1 3/4

changing to improper fraction to make it easier to subtract

11/3 -7/4 = (44- 21)/12 = 23/12  =  1  11/12  cups of flour

Answer: C

n > 1 where n is an integer

Answer:

C) [tex]n\geq 1[/tex]

Step-by-step explanation:

Hey there!

First, we are given:

[tex]\frac{1\frac{1}{4}}{1\frac{3}{8}}[/tex]

To make this easier, I am going to change the fractions in to decimals.

[tex]\frac{1.25}{0.375}[/tex]

To get the unit rate, we can use proportions:

[tex]\frac{1.25}{0.375} = \frac{x}{1}[/tex]

Using cross products, we know that...

[tex]1.25 * 1 = 0.375 * x[/tex]

Now, we solve for [tex]x[/tex]:

[tex]1.25 * 1 = 0.375 * x\\ 1.25 = 0.375x\\ 3 \frac{1}{3} = x[/tex]

Therefore, the unit rate is [tex]\frac{3\frac{1}{3} }{1}[/tex]

Now, do the same with the other problem, and the unit rate is [tex]\frac{1\frac{4}{5} }{1}[/tex]

Have a terrificly amazing day!!!

Answer:

Passes through (0,1) and (1,3).

3-1/1-0=2/1=2

The slope of this line is 2

Step-by-step explanation:

Answer:

Start at the point (0,-2), and go down three points, to the coordinate (0,-5), then go right 2 points, to the coordinate (2,-5). Then draw a line from (2,-5), through (0,-2)

Step-by-step explanation:

Answer:

your second point will be (2,-5) x=2 y=-5. your first point will be (0,-2) x=0 y=-2.  connect them to make a line.

Step-by-step explanation:

So I’m doing this right now. Basically, you need to create a chart.

x and y. So if x=0, solve for y. You need at least 2 points like this to solve it.

I’ll choose 0.

y=-3/2x-2

y=0-2

y=-2

your first point will be (0,-2) x=0 y=-2.

I’ll choose 2.

y=-3/2x-2

y=-3/2*2-2

y=-3-2

y=-5

your second point will be (2,-5) x=2 y=-5.

Hope its helpful to you mark me as a brainlist

Answer:

1/81

Step-by-step explanation:

Answer:

(p - 4)(p + 4)

Step-by-step explanation:

p² - 16 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

p² - 16

= p² - 4²

= (p - 4)(p + 4)

Answer:

The graph of g(x) is a vertical translation of f(x). Although both have the same x coordinates but different y coordinates.

The graph of g is a vertical translation of the graph of f 12 units downward.

Step-by-step explanation:

The equation y=f(x)+k represents that when k is negative, the graph moves downward.

The  complete the sentence is The graph of g is a vertical translation of the graph of f 12 units downward.

Translation is the act of moving a shape or a figure from one location to another. A figure can move in translation up, down, right, left, or anywhere else in the coordinate system. Only the object's position changes during translation; its size stays the same.

Given:

f(x) = 6x

and, g(x) = 6x – 12.

As, -12 shows the vertical translation of 12 units.

Also, The graph of g(x) is a vertical translation of f(x).

Despite having distinct y coordinates, both objects have the same x coordinates.

So, The graph of g is a vertical translation of the graph of 12 units downward.

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Answer:

a=6

Step-by-step explanation:

We are given that an equation

[tex]14a=84[/tex]

We have to solve the equation

To solve the equation we will use division property of equality

By using division property of equality

We get

[tex]a=\frac{84}{14}[/tex]

[tex]a=\frac{14\times 6}{14}[/tex]

[tex]a=6[/tex]

Hence, a=6

Answer:

the proportion answer is 50

Step-by-step explanation: